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Course contents

  • Start Here4
  • UVM Foundations14
  • UVM Phases & Simulation Lifecycle26
  • Factory & Configuration15
  • Transaction-Level Modeling (TLM)13
  • UVM Sequences & Stimulus21
  • UVM Agents & Protocol VIP21
  • Environment & Test Classes11
  • Checking & Coverage in UVM21
  • UVM Register Abstraction Layer (RAL)22
  • Advanced UVM in Practice13
  • Debug & Regression10
  • Coding Practice47
    • How to Use This Course
    • Whiteboard Delivery Framework
    • Scoreboard Coding
      • Ordered FIFO Compare
      • Out-of-Order Reorder Buffer
      • Multi-Stream Merge
      • Predictor & Reference Model
      • Scoreboard Tricky Q&A
    • Monitor & Driver Coding
    • Sequences Coding
    • TLM & Analysis
    • RAL & Adapters
    • Factory & config_db
    • Phases & Objections
    • Env & Test Architecture
    • Debug Broken Testbench
    • Mock Interview Sets
    • Senior UVM Coding Cheat Sheet
  • Verification in Industry Practice10
  • Senior Prep: Architecture, Leadership and Interviews32
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‹Scoreboard Coding
  1. Topics
  2. UVM Verification
  3. Coding Practice
  4. Scoreboard Coding
  5. Predictor & Reference Model
On this page

    UVM Coding PracticeSenior

    Predictor & Reference Model

    Predictor before scoreboard; ref vs DUT paths.

    Interview prompt

    Where does the reference model sit relative to scoreboard? Draw dataflow.

    Diagram
    WHITEBOARD CHAIN
    
    1. DECLARE    interfaces / types / ports you need
    2. SKELETON   class extends + utils macro + key methods
    3. MECHANISM  fill one critical method while narrating
    4. PITFALL    name one bug juniors make on this pattern
    5. TEST       how you would smoke-test the component

    Stimulus → predictor → exp analysis → scoreboard. Monitor → act analysis → scoreboard.

    Key takeaways

    • Predictor transforms; scoreboard only compares.

    Code lab drill

    After reading, try Code lab exercise uvm-l8-int-predictor-sb — topic reference: /topics/uvm/coding-practice/scoreboard/predictor-reference-model

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    See also

    • Ordered FIFO Compare
    • Out-of-Order Reorder Buffer
    • Multi-Stream Merge